Ipmitool Chassis Power Off

There was recently this cute comic that was makings its rounds on my newsfeed, about how you should use SIGTERM instead of SIGKILL. It seems to come from Daniel Stori on DZone, posted on 1st April this year. Well, I’ve got something even more murderous than SIGKILL. I’ll use an IPMI command, and you’ll do it like so: $ ipmitool chassis…

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Man Who Deleted Company Was A Hoax

A few days I shared this story, as did many others on the Internet, about how a man accidentally deleted his company. It’s quite unbelievable, not not altogether impossible. Indeed, some had speculated it to be not legit. It has finally emerged that it wasn’t real, but was simply part of a viral marketing scheme. So now the truth has emerged,…

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A Company Got Deleted By Mistake

It’s every system administrator’s nightmare. The Unix command rm is powerful and wielded properly can be a very useful tool. But used improperly, it can devour you. That is what has happened at a web hosting provider. There, the system administrator made a small little mistake on the command line, but the impact was completely devastating. The system administrator had posted in…

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15th System Administrator Appreciation Day

It’s Sysadmin Day today. Oh, I see, you don’t know what it’s about? Well, let me tell you. No, seriously, there is really such a day. It’s the most important 24 hours of the whole year to pay tribute to the heroic men and women who, come what may, keep the world going. They prevent IT disasters and put out tech…

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Configuration Management With Ansible

Ask any Unix system administrator, and it’s likely they will have heard about CFEngine. If they have been around some time, or have explored or used configuration management tools, they may also know about other popular alternatives like Puppet or Chef. There are many more configuration management tools out there. These are important tools in any large server environment. But…

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SSL Certificates: Single-Root vs Chained-Root

I recently renewed a bunch of SSL certificates. I actually use a reseller, Namecheap.com, but the actual SSL certificate authority is RapidSSL. I’ve bought RapidSSL’s SSL certificates for several years. They are cheap (particularly through a reseller like Namecheap.com), and they work as as good as the very expensive ones from the competition. RapidSSL’s SSL certificates were single-root certificates, making…

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Revisiting Gentoo Linux

I spent a part of today installing Gentoo Linux in a spare PC. If you’ve not heard of it, Gentoo is yet another Linux distribution. It stands out from the rest in that practically everything you install is actually compiled from source code locally. It’s not my first experience with Gentoo… I had a go at it when it was…

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